(19)

(11)

EP 1 829 256 A1

(12)

(43) Date of publication: 05.09.2007 Bulletin 2007/36 (21) Application number: 05816143.1 (22) Date of filing: 14.11.2005

(51) International Patent Classification (IPC):  H04J 3/06(2006.01) (86) International application number: PCT/EP2005/055945 (87) International publication number: WO 2006/067002 (29.06.2006 Gazette 2006/26)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 22.12.2004 GB 0428032 (71) Applicant: Ericsson AB 164 80 Stockholm (SE)	(72) Inventors: BRUNE, Andreas 71522 Backnang (DE) MUELLER, Torsten 71737 Kirchberg an de Murr (DE) (74) Representative: Stasiewski, Piotr Grzegorz  Ericsson Limited Intellectual Property Group Maplewood Chineham Business Park Basingstoke Hampshire RG24 8YB Basingstoke Hampshire RG24 8YB (GB)